This may be useful.
This new trl8822bu driver is in active development and working for Rpi because it's using kernel 4.19. The driver is compatible with 4.7 up to 5.0 at this time. This driver won't for the AML based LE systems on 3.16.
Posts by p-we
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Hi All,
First time post for LibreElec. I have needed a faster wifi connection so I bought cheap ac1200 Edimax EW-7822ULC usb dongle. I did some digging around and found the following driver which works perfect for RPi3 (RPi2 arm) on 9.0.0.0 using kernel 4.19: GitHub - EntropicEffect/rtl8822bu: RTL8822BU Wireless Driver for Linux
See attachment for package.mk I put in linux-drivers build directory
BTW:
I use ArchLinux currently at 4.20 kernel, glibc 2.28, and gcc 8.2.1 which makes an excellent build environment. The only thing that hindered me initially was the lzop and rpcsvc-proto packages needed to be installed to get through the build (in addition to standard build packages)
I had a hard time discovering how to build this ROM with the extra module as it's not in the Build wiki. For those who are stuck like me recently:
1) Use an existing package.mk in the ROM source code as a template in a category close to what you are adding2) Change PKG_NAME, PKG_VERSION, and PKG_SHA256 from a specific commit number in git to get the proper .tar.gz downloaded
3) Folder containing package.mk must have name which is identical to PKG_NAME
4) Edit /http://LibreELEC.tv/projects/project_of_choice/options (/http://LibreELEC.tv/projects/RPi/ in my case) to include extra package:
ADDITIONAL_DRIVERS="$ADDITIONAL_DRIVERS rpi-cirrus-config RTL8822BU"